EP 1767148 A1 20070328 - MAINTENANCE METHOD FOR A MAGNETIC RESONANCE IMAGING DEVICE
Title (en)
MAINTENANCE METHOD FOR A MAGNETIC RESONANCE IMAGING DEVICE
Title (de)
WARTUNGSVERFAHREN FÜR EINE MAGNETTOMOGRAPHIEVORRICHTUNG
Title (fr)
PROCÉDÉ DE MAINTENANCE POUR UN DISPOSITIF D'IMAGERIE PAR RÉSONANCE MAGNÉTIQUE
Publication
Application
Priority
- JP 2005011952 W 20050629
- JP 2004196385 A 20040702
Abstract (en)
A magnetic resonance imaging apparatus comprising a vacuum container vacuumized inside thereof, a liquid refrigerant container installed in the vacuum container to store liquid refrigerant therein, a superconducting member installed inside the liquid refrigerant container to be rendered superconductive by being impregnated in the liquid refrigerant and allow current to flow therethrough, and freezing means connected to an insertion port provided in the liquid refrigerant container to re-condense gas evaporated from the liquid refrigerant in the liquid refrigerant container, characterized in that an air flow-in preventing means is provided that raises the pressure in the liquid refrigerant container to prevent air from flowing into the insertion port of the liquid refrigerant container from the outside of the vacuum container.
IPC 8 full level
A61B 5/055 (2006.01); G01R 33/3815 (2006.01)
CPC (source: EP US)
G01R 33/3815 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 1767148 A1 20070328; EP 1767148 A4 20121010; EP 1767148 B1 20150805; CN 100490740 C 20090527; CN 1972630 A 20070530; JP 4925826 B2 20120509; JP WO2006003937 A1 20080417; US 2007204630 A1 20070906; US 8893516 B2 20141125; WO 2006003937 A1 20060112
DOCDB simple family (application)
EP 05755706 A 20050629; CN 200580020822 A 20050629; JP 2005011952 W 20050629; JP 2006528747 A 20050629; US 63022005 A 20050629